hdu-1038

#include<cstdio>#define p 3.1415926int main(){int r;double d,t;int i=0;while(scanf("%lf%d%lf",&d,&r,&t) && r){double sum=p*d*r/12/5280;double v=sum/(t/3600);printf("Trip #%d: %.2lf %.2lf\n",++i,sum,v);}return 0;}